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report.go
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report.go
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package iopipe
import (
"fmt"
"os"
"sync"
"time"
"github.com/aws/aws-lambda-go/lambdacontext"
)
// Report contains an IOpipe report
type Report struct {
agent *Agent
mutex sync.Mutex
sent bool
startTime time.Time
ClientID string `json:"client_id"`
InstallMethod string `json:"installMethod"`
Duration int `json:"duration"`
ProcessID string `json:"processId"`
Timestamp int `json:"timestamp"`
TimestampEnd int `json:"timestampEnd"`
AWS *ReportAWS `json:"aws"`
Disk *ReportDisk `json:"disk"`
Environment *ReportEnvironment `json:"environment"`
ColdStart bool `json:"coldstart"`
Errors interface{} `json:"errors"`
CustomMetrics []CustomMetric `json:"custom_metrics"`
labels map[string]struct{}
Labels []string `json:"labels"`
Plugins []PluginMeta `json:"plugins"`
}
// ReportAWS contains AWS invocation details
type ReportAWS struct {
FunctionName string `json:"functionName"`
FunctionVersion string `json:"functionVersion"`
AWSRequestID string `json:"awsRequestId"`
InvokedFunctionArn string `json:"invokedFunctionArn"`
LogGroupName string `json:"logGroupName"`
LogStreamName string `json:"logStreamName"`
MemoryLimitInMB int `json:"memoryLimitInMB"`
GetRemainingTimeInMillis int `json:"getRemainingTimeInMillis"`
TraceID string `json:"traceId"`
}
// ReportDisk contains disk usage information
type ReportDisk struct {
TotalMiB float64 `json:"totalMiB"`
UsedMiB float64 `json:"usedMiB"`
UsedPercentage float64 `json:"usedPercentage"`
}
// ReportEnvironment contains environment information
type ReportEnvironment struct {
Agent *ReportEnvironmentAgent `json:"agent"`
Host *ReportEnvironmentHost `json:"host"`
OS *ReportEnvironmentOS `json:"os"`
Runtime *ReportEnvironmentRuntime `json:"runtime"`
}
// ReportEnvironmentAgent contains information about the IOpipe agent
type ReportEnvironmentAgent struct {
Runtime string `json:"runtime"`
Version string `json:"version"`
LoadTime int `json:"load_time"`
}
// ReportEnvironmentHost contains host information
type ReportEnvironmentHost struct {
BootID string `json:"boot_id"`
}
// ReportEnvironmentOS contains operating system information
type ReportEnvironmentOS struct {
FreeMem uint64 `json:"freemem"`
Hostname string `json:"hostname"`
TotalMem uint64 `json:"totalmem"`
UsedMem uint64 `json:"usedmem"`
CPUs []ReportEnvironmentOSCPU `json:"cpus"`
Linux *ReportEnvironmentOSLinux `json:"linux"`
}
// ReportEnvironmentOSCPU contains cpu information
type ReportEnvironmentOSCPU struct {
Times ReportEnvironmentOSCPUTimes `json:"times"`
}
// ReportEnvironmentOSCPUTimes contains cpu times
type ReportEnvironmentOSCPUTimes struct {
Idle uint64 `json:"idle"`
Irq uint64 `json:"irq"`
Nice uint64 `json:"nice"`
Sys uint64 `json:"sys"`
User uint64 `json:"user"`
}
// ReportEnvironmentOSLinux contains linux system information
type ReportEnvironmentOSLinux struct {
PID *ReportEnvironmentOSLinuxPID `json:"pid"`
}
// ReportEnvironmentOSLinuxPID contains linux process information
type ReportEnvironmentOSLinuxPID struct {
Self *ReportEnvironmentOSLinuxPIDSelf `json:"self"`
}
// ReportEnvironmentOSLinuxPIDSelf contains current process information
type ReportEnvironmentOSLinuxPIDSelf struct {
Stat *ReportEnvironmentOSLinuxPIDSelfStat `json:"stat"`
StatStart *ReportEnvironmentOSLinuxPIDSelfStat `json:"stat_start"`
Status *ReportEnvironmentOSLinuxPIDSelfStatus `json:"status"`
}
// ReportEnvironmentOSLinuxPIDSelfStat contains process stats
type ReportEnvironmentOSLinuxPIDSelfStat struct {
Cstime uint64 `json:"cstime"`
Cutime uint64 `json:"cutime"`
Stime uint64 `json:"stime"`
Utime uint64 `json:"utime"`
}
// ReportEnvironmentOSLinuxPIDSelfStatus contains process status
type ReportEnvironmentOSLinuxPIDSelfStatus struct {
FDSize int32 `json:"FDSize"`
Threads int32 `json:"Threads"`
VMRSS uint64 `json:"VmRSS"`
}
// ReportEnvironmentRuntime contains runtime information
type ReportEnvironmentRuntime struct {
Name string `json:"name"`
Version string `json:"version"`
}
// Reporter is the reporter interface
type Reporter func(report *Report) error
// CustomMetric is a custom metric
type CustomMetric struct {
Name string `json:"name"`
S interface{} `json:"s"`
N interface{} `json:"n"`
}
// NewReport instantiates a new IOpipe report
func NewReport(handler *HandlerWrapper) *Report {
startTime := time.Now()
statStart := readPIDStat()
agent := handler.agent
lc := handler.lambdaContext
if lc == nil {
lc = &lambdacontext.LambdaContext{
AwsRequestID: generateUUID(),
InvokedFunctionArn: fmt.Sprintf("arn:aws:lambda:local:0:function:%s", lambdacontext.FunctionName),
}
}
pluginsMeta := make([]PluginMeta, 0)
token := ""
if agent != nil && agent.Token != nil {
token = *agent.Token
}
return &Report{
agent: agent,
sent: false,
startTime: startTime,
ClientID: token,
InstallMethod: "manual",
ProcessID: processID,
Timestamp: int(startTime.UnixNano() / 1e6),
AWS: &ReportAWS{
FunctionName: lambdacontext.FunctionName,
FunctionVersion: lambdacontext.FunctionVersion,
AWSRequestID: lc.AwsRequestID,
InvokedFunctionArn: lc.InvokedFunctionArn,
LogGroupName: lambdacontext.LogGroupName,
LogStreamName: lambdacontext.LogStreamName,
MemoryLimitInMB: lambdacontext.MemoryLimitInMB,
GetRemainingTimeInMillis: int(time.Until(handler.deadline).Nanoseconds() / 1e6),
TraceID: os.Getenv("_X_AMZN_TRACE_ID"),
},
Environment: &ReportEnvironment{
Agent: &ReportEnvironmentAgent{
Runtime: RUNTIME,
Version: VERSION,
LoadTime: loadTime,
},
Host: &ReportEnvironmentHost{
BootID: bootID,
},
OS: &ReportEnvironmentOS{
Hostname: hostname,
Linux: &ReportEnvironmentOSLinux{
PID: &ReportEnvironmentOSLinuxPID{
Self: &ReportEnvironmentOSLinuxPIDSelf{
Stat: &ReportEnvironmentOSLinuxPIDSelfStat{},
StatStart: &ReportEnvironmentOSLinuxPIDSelfStat{
Cstime: statStart.cstime,
Cutime: statStart.cutime,
Stime: statStart.stime,
Utime: statStart.utime,
},
},
},
},
},
Runtime: &ReportEnvironmentRuntime{
Name: RUNTIME,
Version: runtimeVersion,
},
},
ColdStart: coldStart,
CustomMetrics: []CustomMetric{},
labels: make(map[string]struct{}, 0),
Labels: make([]string, 0),
Errors: &struct{}{},
Plugins: pluginsMeta,
}
}
// prepare prepares an IOpipe report to be sent
func (r *Report) prepare(err error) {
r.mutex.Lock()
defer r.mutex.Unlock()
endTime := time.Now()
r.TimestampEnd = int(endTime.UnixNano() / 1e6)
r.Duration = int(endTime.Sub(r.startTime).Nanoseconds())
if err != nil {
r.Errors = coerceInvocationError(err)
}
for label := range r.labels {
r.Labels = append(r.Labels, label)
}
r.Plugins = make([]PluginMeta, len(r.agent.plugins))
for index, plugin := range r.agent.plugins {
r.Plugins[index] = *plugin.Meta()
}
statEnd := readPIDStat()
r.Environment.OS.Linux.PID.Self.Stat.Cstime = statEnd.cstime
r.Environment.OS.Linux.PID.Self.Stat.Cutime = statEnd.cutime
r.Environment.OS.Linux.PID.Self.Stat.Stime = statEnd.stime
r.Environment.OS.Linux.PID.Self.Stat.Utime = statEnd.utime
status := readPIDStatus()
r.Environment.OS.Linux.PID.Self.Status = &ReportEnvironmentOSLinuxPIDSelfStatus{
FDSize: status.fdSize,
Threads: status.threads,
VMRSS: status.vmRss,
}
cpus := readSystemStat()
cpuTimes := make([]ReportEnvironmentOSCPU, len(cpus))
for index, cpu := range cpus {
cpuTimes[index].Times = ReportEnvironmentOSCPUTimes{
Idle: cpu.idle,
Irq: cpu.irq,
Nice: cpu.nice,
Sys: cpu.sys,
User: cpu.user,
}
}
r.Environment.OS.CPUs = cpuTimes
disk := readDisk()
r.Disk = &ReportDisk{
TotalMiB: disk.totalMiB,
UsedMiB: disk.usedMiB,
UsedPercentage: disk.usedPercentage,
}
mem := readMemInfo()
r.Environment.OS.FreeMem = mem.free
r.Environment.OS.TotalMem = mem.total
r.Environment.OS.UsedMem = mem.used
}
// send sends the report to IOpipe
func (r *Report) send() {
r.mutex.Lock()
defer r.mutex.Unlock()
if r.sent {
return
}
r.sent = true
r.preReport()
if r.agent != nil && r.agent.Reporter != nil {
err := r.agent.Reporter(r)
if err != nil {
r.agent.log.Debug("Reporting error: ", err)
}
}
r.postReport()
}
// preReport runs the PreReport hooks
func (r *Report) preReport() {
var wg sync.WaitGroup
wg.Add(len(r.agent.plugins))
for _, plugin := range r.agent.plugins {
go func(plugin Plugin) {
defer wg.Done()
if plugin != nil && plugin.Enabled() {
plugin.PreReport(r)
}
}(plugin)
}
wg.Wait()
}
// postReport runs the PostReport hooks
func (r *Report) postReport() {
var wg sync.WaitGroup
wg.Add(len(r.agent.plugins))
for _, plugin := range r.agent.plugins {
go func(plugin Plugin) {
defer wg.Done()
if plugin != nil && plugin.Enabled() {
plugin.PostReport(r)
}
}(plugin)
}
wg.Wait()
}